So I thought I'd entertain you all with a follow up...
To recap, I have an iMac 5k as my primary\desktop computer. I travel about 2 weeks out of the month, mostly international. So having a lightweight computer is important to me. The ports aren't at all an issue, since I generally just use the charge port and 1 USB port, not extra HDMI or Thunderbolt, etc.
For the past 3 years, I've had a Macbook Air. I had the 2012, then the 2013, then the 2014, always the 11", and always the "ultimate" spec'd version. I was generally happy with it, especially the battery life and portability. It was a great road-warrior computer. It had the thin\light attributes, but it also had a fully capable processor in the i5\i7 to handle even the moderately demanding tasks I'd throw at it. The one disappointment revision after revision was the screen. It wasn't just non-retina, it was an awful display by any standard. It was a substandard screen for a Mac IMO.
So when the rMB was announced, I was giddy, it was perfect seemingly in every way. Sure there was the uncertainty of the keyboard, the nuance of the track pad, and the lack of ports, but my primary driver has always been a computer that's packed into as small a box as possible, with as much bang for the buck as I can get. I was able to snag a 1.2ghz\512GB model from Best Buy the Sunday after the Friday April 10 launch. I was astonished how thin and light it was. Immediately upon getting it setup (both as from scratch and from a backup), I began to notice the underpowered CPU. Tasks that my previous 3 years of Macbook Airs chewed through struggled on my rMB. Things like web pages lagged when scrolling, apps took 2x as long to open vs a MBA, and general sluggishness on other aspects of use were VERY glaringly obvious. Flash in Safari or Chrome was basically unusable for all intensive purposes.
So I thought I'd tough it out for a month and give it a chance. Fortunately, most of the UI lag was remedied in OS, but the issues of the actual performance of the computer wasn't. So that sent me on a quest for options. Go back to a sub-par screen on a Macbook Air... not really a good alternative after tasting the sweet nectar of a macbook with a retina screen... How about going to a rMBP 13"? Not ideal, it's a bit bigger, but can I tolerate how big it is? The performance is a non-issue on it because it's a powerhouse. So I figured I'd give it a shot and try a rMBP.
Long story short, the rMBP is an amazing computer, blazingly fast in every way.... but after 12 hours carrying it around the house, trying it in my travel bag, etc, it's just too bulky, too heavy, and too big for my needs after having the thin and lights for so long. I returned it just now.
So now I'm back with my Retina Macbook. I'm not in love with it, nor do I hate it. It's a 6 out of 10 for my needs, so I'm just accepting it for now. You better believe the first option I have for something thin and light with better performance I'll jump on. I can only hope the 10.10 and 10.11 betas continue to make incremental performance improvements, but until then I will just suck it up and live with it.
I wish there was an option that met my needs to at least an 8 out of 10, but there just isn't at this point.